Purpose:
1 - to have the Default Female or Male Avatar displayed in profile, instead of the impersonal Neutral avatar (this before the user upload his/her own avatar)
2 - to have that working in a multilingual website
So, in the attached file, you will find all to create a Gender field - with auto gender specific Avatar, language and search compliant for CB 1.8.1
Don't forget that it's always recommended to backup your site before !!
After the easy setup, once a user has selected his/her profile gender, the standard nophoto_n image will be replaced with the gender specific nophoto_f or nophoto_m image and also in member lists and in plugins.
Hope your customers will enjoy it.